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Take fill into account when hit-testing arcs. 

Fixes https://gitlab.com/kicad/code/kicad/issues/11305
This commit is contained in:
Jeff Young 2022-04-01 22:40:05 +01:00
parent a12f77b8f6
commit 9402b2aeda
1 changed files with 50 additions and 38 deletions
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88
common/eda_shape.cpp
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@ -725,28 +725,37 @@ bool EDA_SHAPE::hitTest( const VECTOR2I& aPosition, int aAccuracy ) const
int radius = GetRadius();
int dist = KiROUND( EuclideanNorm( relPos ) );
if( abs( radius - dist ) <= maxdist )
if( IsFilled() )
{
EDA_ANGLE startAngle;
EDA_ANGLE endAngle;
CalcArcAngles( startAngle, endAngle );
if( m_upsideDownCoords && ( startAngle - endAngle ).Normalize180() > ANGLE_0 )
std::swap( startAngle, endAngle );
EDA_ANGLE relPosAngle( relPos );
startAngle.Normalize();
endAngle.Normalize();
relPosAngle.Normalize();
if( endAngle > startAngle )
return relPosAngle >= startAngle && relPosAngle <= endAngle;
else
return relPosAngle >= startAngle || relPosAngle <= endAngle;
// Check distance from arc center
if( dist > radius + maxdist )
return false;
}
else
{
// Check distance from arc circumference
if( abs( radius - dist ) > maxdist )
return false;
}
return false;
// Finally, check to see if it's within arc's swept angle.
EDA_ANGLE startAngle;
EDA_ANGLE endAngle;
CalcArcAngles( startAngle, endAngle );
if( m_upsideDownCoords && ( startAngle - endAngle ).Normalize180() > ANGLE_0 )
std::swap( startAngle, endAngle );
EDA_ANGLE relPosAngle( relPos );
startAngle.Normalize();
endAngle.Normalize();
relPosAngle.Normalize();
if( endAngle > startAngle )
return relPosAngle >= startAngle && relPosAngle <= endAngle;
else
return relPosAngle >= startAngle || relPosAngle <= endAngle;
}
case SHAPE_T::BEZIER:
@ -808,7 +817,6 @@ bool EDA_SHAPE::hitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy )
arect.Normalize();
arect.Inflate( aAccuracy );
EDA_RECT arcRect;
EDA_RECT bb = getBoundingBox();
switch( m_shape )
@ -822,14 +830,10 @@ bool EDA_SHAPE::hitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy )
else
{
// If the rectangle does not intersect the bounding box, this is a much quicker test
if( !aRect.Intersects( bb ) )
{
if( !arect.Intersects( bb ) )
return false;
}
else
{
return arect.IntersectsCircleEdge( getCenter(), GetRadius(), GetWidth() );
}
}
case SHAPE_T::ARC:
@ -841,14 +845,19 @@ bool EDA_SHAPE::hitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy )
// Test if the rect crosses the arc
else
{
arcRect = bb.Common( arect );
if( !arect.Intersects( bb ) )
return false;
/* All following tests must pass:
* 1. Rectangle must intersect arc BoundingBox
* 2. Rectangle must cross the outside of the arc
*/
return arcRect.Intersects( arect ) &&
arcRect.IntersectsCircleEdge( getCenter(), GetRadius(), GetWidth() );
if( IsFilled() )
{
return ( arect.Intersects( getCenter(), GetStart() )
|| arect.Intersects( getCenter(), GetEnd() )
|| arect.IntersectsCircleEdge( getCenter(), GetRadius(), GetWidth() ) );
}
else
{
return arect.IntersectsCircleEdge( getCenter(), GetRadius(), GetWidth() );
}
}
case SHAPE_T::RECT:
@ -1013,6 +1022,15 @@ std::vector<VECTOR2I> EDA_SHAPE::GetRectCorners() const
void EDA_SHAPE::computeArcBBox( EDA_RECT& aBBox ) const
{
// Start, end, and each inflection point the arc crosses will enclose the entire arc.
// Only include the center when filled; it's not necessarily inside the BB of an unfilled
// arc with a small included angle.
aBBox.SetOrigin( m_start );
aBBox.Merge( m_end );
if( IsFilled() )
aBBox.Merge( m_arcCenter );
int radius = GetRadius();
EDA_ANGLE t1, t2;
@ -1024,12 +1042,6 @@ void EDA_SHAPE::computeArcBBox( EDA_RECT& aBBox ) const
t1.Normalize();
t2.Normalize();
// Start, end, and each inflection point the arc crosses will enclose the entire arc
// Do not include the center, which is not necessarily inside the BB of an arc with a
// small included angle
aBBox.SetOrigin( m_start );
aBBox.Merge( m_end );
if( t2 > t1 )
{
if( t1 < ANGLE_0 && t2 > ANGLE_0 )